<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>斐波那契数列</title>
</head>
<body>
    
    <script>
        
        function feiBoNaQieShuLie(n){
            var x = 1;
            var y = 1;

            var count = 0;
            for(var i = 0; i < n;i++){
                count = x + y;

                x = y;
                y = count;   
            }
            return count;
        }
        var num = feiBoNaQieShuLie(6);
        console.log(num);

    </script>

</body>
</html>